workaround IBM java 1.5.0 inconvertible types error

Change-Id: I84533723e9f42a27e2942c28b53232630db82e10

jurt/com/sun/star/lib/uno/environments/java/java_environment.java

@@ -206,7 +206,8 @@ public final class java_environment implements IEnvironment {
         // must only be called while synchronized on this Registry:
         private void cleanUp() {
             for (;;) {
-                Level2Entry l2 = (Level2Entry) queue.poll();
+                Object tmp = queue.poll();
+                Level2Entry l2 = (Level2Entry) tmp;
                 if (l2 == null) {
                     break;
                 }

ridljar/com/sun/star/lib/uno/typedesc/TypeDescription.java

@@ -676,7 +676,8 @@ public final class TypeDescription implements ITypeDescription {
 
         private void cleanUp() {
             for (;;) {
-                Entry e = (Entry) queue.poll();
+                Object tmp = queue.poll();
+                Entry e = (Entry)tmp;
                 if (e == null) {
                     break;
                 }